Home / 11,855.30-16,360.79-6,819.52

Finding the Fourth Proportional to 11,855.30, 16,360.79 and 6,819.52

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Solution

The fourth proportional to 11,855.30, 16,360.79 and 6,819.52 is: 9,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.30 : 16,360.79 = 6,819.52 : x
  2. Step 2: Convert to fraction form
    11,855.30/16,360.79 = 6,819.52/x
  3. Step 3: Cross multiply
    11,855.30x = 16,360.79 × 6,819.52
  4. Step 4: Simplify right side
    11,855.30x = 111,572,734.62
  5. Step 5: Solve for x
    x = 111,572,734.62/11,855.30
  6. Step 6: Final answer
    x = 9,411.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.